Determine if current PowerShell Process is 32-bit or 64-bit?
When running a PowerShell script on a x64-bit OS platform, how can you determine in the script what version of PowerShell (32-bit or 64-bit) the script is running on?
Background
Both 32-bit and 64-bit versions of PowerShell are installed by default on a 64-bit platform such as Windows Server 2008. This can lead to difficulties when a PowerShell script is ran that must target a specific architecture (i.e. using 64-bit for a script for SharePoint 2010, in order to consume the 64-bit libraries).
Related question:
- What is the best way to program against powershell's x64 vs. x86 variability? This question deals with code running against both 32-bit and 64-bit architectures. My question deals with the case when you want to ensure the script only runs against the correct version.
Answer
If you're shell is running on .NET 4.0 (PowerShell 3.0):
PS> [Environment]::Is64BitProcess
True